[amsat-bb] Re: ARISSat-1 - Battery Failure

[R Oler]

"
If that cannot be done then the option is to launch ARISSat as is and let it run off the 
solar panels."

pleased to be wrong here but I dont think that is an option.  I "THINK" (and you know that really could be wrong) that the battery is essential for the 15 minute "silent" period on launch  Robert WB5MZO

> From: am25544 at triton.net
> To: amsat-bb at amsat.org
> Date: Sun, 17 Apr 2011 02:47:09 -0400
> Subject: [amsat-bb] Re: ARISSat-1 - Battery Failure
> 
> On  16 Apr 2011 10:47:57, John P. Toscano, W0JT wrote:
> 
> >Subject: [amsat-bb] Re: ARISSat-1 - Battery Failure
> 
> >One small consolation is that if the ISS crew can't get it working before 
> >tossing it into space, it could (possibly) be brought back to Earth on a 
> >future return trip to be diagnosed and repaired on the ground.
> 
> >But let's hope it is something simple to fix up on the ISS and that someone 
> >on the crew can take a little time to fix it.
> 
> >But I also understand that none of those 3 scenarios are guaranteed (easy 
> >to fix, time to fix it, or return it to Earth).
> 
> >John P. Toscano, W0JT
> 
> 
> 
> I can think of a somewhat darker scenario...
> 
> On April 14, 2011, Clint  K6LCS posted:
> 
> 
> >Message-ID: <B4798E98-0A8B-4B39-918C-F8EC70FFEE4D at mac.com>
> >Content-Type: text/plain; CHARSET=US-ASCII
> 
> >RadioSkaf's Alexander, RA3WOK, just wrote me that they do, indeed, suspect battery failure of the ARISSat-1.
> >Investigation and plans for deployment continue.
> 
> >"According to preliminary information the problem is a failure of the battery ... "
> 
> >"In the near future, batteries will be on Earth. It cannot be kept on the ISS."
> 
> >"The situation will improve in June and July, when scheduled launching of ARISSat-1."
> 
> 
> 
> If the batteries cannot be kept on the ISS, there are three opportunities to return them
> (intact) to earth before the Russian EVA #29 now scheduled for July 27, 2011:
> -On STS-134 returning to earth May 12(?), 2011
> -On Soyuz TMA-20 returning to earth May 16, 2011
> -On STS-135 returning to earth July 12, 2011
> 
> Someone will have to remove the battery from ARISSat,  and place it on one these vehicles...
> assuming the time and down mass capacity to this can be found.  Replacing the battery
> with another becomes the next issue.  Is there a spare on board?
> 
> If that cannot be done then the option is to launch ARISSat as is and let it run off the 
> solar panels.
> 
> If the desire is to get the battery off the ISS as quickly as possible, then it goes on
> the Progress M-09M, which is to be de-orbited April 26, 2011.  If time cannot be found
> to remove the battery from ARISSat, then the simplest thing to do is to put ARISSat,
> battery and all, on the Progress and de-orbit it.
> 
> Of course, we could all be surprised and it could be deployed by the STS-134 crew,
> but they are going to be plenty busy as it is.
> 
> This is just idle speculation on my part... It's a gloomy rain day in Michigan.  :-)
> 
> 73 Armando,  N8IGJ
> 
> 
> 
> 
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